Megalosaurus

The Megalosaurus (Megalosaurus bucklandi) was a type of theropod dinosaur. It was around nine feet long and three metres tall. It was found in Eurasia, specifically the parts that would later be known as England and France. It died out in the Jurassic period from environmental changes.

In an Silurian Earth, Megalosaurus was one of the specimens bought back from extinction by the Silurians. They were said to be one of the many predators roaming France and were presumably used by the Silurians as hunting mounts. (PROSE: Blood Heat)